Home / 378,747.09-568,023.44-112,445.82

Finding the Fourth Proportional to 378,747.09, 568,023.44 and 112,445.82

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Solution

The fourth proportional to 378,747.09, 568,023.44 and 112,445.82 is: 168,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,747.09 : 568,023.44 = 112,445.82 : x
  2. Step 2: Convert to fraction form
    378,747.09/568,023.44 = 112,445.82/x
  3. Step 3: Cross multiply
    378,747.09x = 568,023.44 × 112,445.82
  4. Step 4: Simplify right side
    378,747.09x = 63,871,860,927.79
  5. Step 5: Solve for x
    x = 63,871,860,927.79/378,747.09
  6. Step 6: Final answer
    x = 168,639.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.